Protocol analysis
R&S
®
RTP
882User Manual 1337.9952.02 ─ 12
CTLE
Continuous time linear equalization (CTLE) is an equalization that can be used for
improving the signal performance. It boosts the high frequency noise and the signal.
Thus it helps reduce the inter-symbol interference (ISI) on the reciever side.
The transfer function for behavioral CTLE is defined as follows:
Figure 13-37: Transfer function for behavioral CTLE
ω
P1
=2πf
P1
= Pole one frequency
ω
P2
=2πf
P2
= Pole two frequency
The PCI Express® Base Specification Revision 3.0, defines 1
st
order CTLE with fixed
low frequency (LF) and high frequency (HF) poles for behavioral Rx equalization.
Enable ← CTLE
Enables the CTLE equalization.
Remote command:
BUS<m>:CTLE:ENBLe on page 2046
Pole frequency (wp1)/(wp2) ← CTLE
Sets the pole 1/2 frequency for the transfer function of the CTLE algorithm.
Remote command:
BUS<m>:CTLE:P1FReq on page 2046
BUS<m>:CTLE:P2FReq on page 2047
PCIe (option R&S
RTP-K72/K73)
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